Added two tiers more for almost all the conv weapons except the M41 SPNKr Rocket Launcher

Bug fixes in some weapons (Now the needler don't have an squadsight view ability and the beam rifle have the correct shoot and overwatch shoot ) thanks to Wyvern for the report

fix sound problems

Added the first version of the Needler

the shotgun should appear now.
now the plasma tier should appear in the Engineering when the tech requeriments are fulfilled

The bug with conventional weapons in saved games should have been finally resolved

the rocket launcher had less volume

have to push the updated again since something went wrong with steam

Revert some changes
the brute shot is available in covert infiltration now

Second fix for the starter weapons in new games